在ASP.NET MVC中动态地从数据库生成CSS文件

public class CssController : Controller {
    public ActionResult GetCss() {
        StringBuilder sb = new StringBuilder();
        Dictionary<string,string> cssValues = new Dictionary<string,string>();
        // populate dictionary with values from your database
        sb.AppendLine(".myDivClass {");
        foreach (var entry in cssValues) {
            sb.AppendLine(entry.Key + ": " + entry.Value);
        }
        sb.AppendLine("}");
        return Content(sb.ToString(),"text/css");
    }
}

现在在您的页面中,您可以这样引用：

<link href="<%: Url.RouteUrl(new { controller=  "CssController",action = "GetCss" }) %>" rel="stylesheet" type="text/css" />

OP编辑：我对该方法进行了一些小的改动,但总的前提依然存在.这是我使用的版本：

public class CssController : Controller
{
    public ContentResult GetTheme()
    {
        var builder = new StringBuilder();
        IDictionary<string,IDictionary<string,string>> css = new Dictionary<string,string>>();

        /* Populate css object from the database */

        foreach (var selector in css)
        {
            builder.Append(selector.Key);
            builder.Append(" { ");
            foreach (var entry in selector.Value)
            {
                builder.Append(string.Format("{0}: {1}; ",entry.Key,entry.Value));
            }
            builder.AppendLine("}");
        }

        return Content(builder.ToString(),"text/css");
    }
}